The results of the refraction test are primarily what the doctor uses to develop your final eyeglass or contact lens prescription. 1  Eye Refraction. 2  Refractive Error. 3  How to Read an Eyeglass Prescription.
Hi-Lo Trailers Worldwide Now. Hi-Lo Trailers Worldwide is a new company owned and operated by William Kerola, President of The Kerola Group, a family owned and operated recreational vehicle dealership and manufacturer located in Transfer, Pennsylvania. Read more about us.
Beyond aesthetics, a primary consideration with any type of mechanical trailer is the setup system. Hi-Lo is noted for its patented lift system that makes setup easy, even in the rain. Thoroughly test the lift system of any new Hi-Lo travel trailer you're considering. Make sure it operates smoothly and safely.